Web前端开发工程师现在的发展是一个很新颖的职业,简单的说在国内或是在国际上真正开始受到重视的时间不到10年。Web前端开发是从网页制作演变而来的,名称上有很明显的时代特征。昌平北大青鸟发现在互联网的演化进程中,网页制作是Web10时代的产物,那时网站的主要内容都是静态的,用户使用网站的行为也以浏览为主
要成为web前端工程师都需要学习什么
第一,必须掌握基本的Web前端开发技术,其中包括:CSS、HTML、SEO、DOM、BOM、Ajax、JavaScript等,在掌握这些技术的同时,还要清楚地了解它们在不同浏览器上的兼容情况、渲染原理和存在的Bug。第二,在一名合格的前端工程师的知识结构中,网站性能优化、SEO和服务器端的基础知识也是必须掌握的。第三,必须学会运用各种工具进行辅助开发。第四,除了要掌握技术层面的知识,还要掌握理论层面的知识,包括代码的可维护性、组件的易用性、分层语义模板和浏览器分级支持,等等。可见,看似简单的网页制作,如果要做得更好、更专业,真的是不简单。这就是前端开发的特点,也是让很多人困惑的原因。如此繁杂的知识体系让新手学习起来无从下手,对于老手来说,也时常不知道下一步该学什么。代码质量是前端开发中应该重点考虑的问题之一。例如,实现一个网站界面可能会有无数种方案,但有些方案的维护成本会比较高,有些方案会存在性能问题,而有些方案则更易于维护,而且性能也比较好。这里的关键影响因素就是代码质量。CSS、HTML、JavaScript这三种前端开发语言的特点是不同的,对代码质量的要求也不同,但它们之间又有着千丝万缕的联系。
在web前端工程师之前,我们是需要学习、实 *** ,掌握静态网页的制作,能够灵活的使用html+css语言和Div+css的布局来制作优良的静态页面。
能够使用JavaScript语言制作精良的动态效果和用户体验,并且深入浅出的对于JavaScript的函数框架制作与使用。
能够使用Html5来制作精美网页效果以及移动APP开发和混合APP的开发与制作。
如何才能成为一个好的web前端工程师
一位好的Web前端开发工程师在知识体系上既要有广度,又要有深度,所以很多大公司即使出高薪也很难招聘到理想的前端开发工程师。现在说的重点不在于讲解技术,而是更侧重于对技巧的讲解。技术非黑即白,只有对和错,而技巧则见仁见智。以前会Photoshop和Dreamweaver就可以制作网页,现在只掌握这些已经远远不够了。无论是开发难度上,还是开发方式上,现在的网页制作都更接近传统的网站后台开发,所以现在不再叫网页制作,而是叫Web前端开发。Web前端开发在产品开发环节中的作用变得越来越重要,而且需要专业的前端工程师才能做好,这方面的专业人才近两年来备受青睐。Web前端开发是一项很特殊的工作,涵盖的知识面非常广,既有具体的技术,又有抽象的理念。简单地说,它的主要职能就是把网站的界面更好地呈现给用户。所以一名优秀的前端开发工程师,不单单需要掌握前端必须的各种技术,同时还要掌握其它技术,需要掌握一点后台的知识,同时也要对网站构架有一定的了解,同时还要掌握一定的SEO网站优化技术,这样才可以称之为一个“优秀的web前端开发工程师”。除了技术以外,还需要一定的时间来沉淀自己。一名资深的优秀web前端开发工程师,是每个大型企业都渴望的人才。业内人士表示,宁可高薪招人,险企也不愿自己培养相关的技术人才
你可以去看其他IT公司的模板,然后把好的全记录下来,然后选择好的,再把它们拼在一起不就行了。你可以去怪兽模板中国区官方网站里去找找,我记得里面有挺多这类的模板。在百度里直接搜索怪兽模板就会出来的。
For years we've been told by doctors, trainers and friends that all we need to go running is a good pair of shoes However, according to Eileen Duane, an ACE personal trainer at Berkshire Functional Fitness in Great Barrington and founder of Berkshire Barefooters, the key to a good run is not your sneakers -- but your unadorned feet
Duane, 53,Vibram FiveFingers flow, has been a runner all her life but has just recently traded her sneakers for Vibram FiveFingers "foot gloves," and now she hopes that other Berkshire runners will do the same On Friday, May 5,Vibram FiveFingers classic, and Saturday, May 6, Duane will host a film screening and workshop on barefoot running The idea, she said, is to inform interested runners (and even nonrunners) about the benefits of shoes-off trekking
"We are merging that weekend for a film and workshop to see who would be interested," she said "I am getting very excited about the upcoming start of the Berkshire Barefooters Last year I went to the first annual Barefoot Run in New York City and became so inspired that I came up with the idea of starting a group in Great Barrington I read Born to Run' the year before I have been a runner my whole life and at 51 decided to wear my Vibram FiveFingers on my runs Sometimes I do run totally nude (on the feet)
"There is a training process to learning how to switch from running with sneakers to barefoot, so as a personal trainer I decided I could help and also find similar souls,'" she quipped
Not surprisingly, Duane has been able to initiate the formation of her barefooted tribe through friends and work contacts Bill Meier, aquatic director at Simon's Rock College and a co-worker of Duane's, is one such "soul" According to him, taking off barefoot is good for the body and the soul
"I had heard about barefoot running about two years ago and was drawn to try it because of the glowing testimonials of enthusiasts," he said "It seems like a rational decision -- your legs are their own shock absorbers Some people are predicting that there will be a complete rethinking of sneaker design because of this That is not a trend I run now with Converse All Stars, which have very little cushion in the heal and a flat sole When I run on the balls of my feet, I can really feel the difference -- a lot less structural pounding"
Meier's and Duane's personal experience with barefoot running (and with its benefits) is supported by the extensive research of Daniel Lieberman, a professor in the Department of Human Evolutionary Biology at Harvard University In 2004, Lieberman, along with Dennis Bramble (Department of Biology at the University of Utah) published a review article for Nature magazine titled "Endurance Running and the Evolution of Homo" The article outlined the endurance running capabilities of our ancient ancestors and how, in most cases, early humans (and even contemporary cultures, particularly in Africa) continued to hunt and run successfully without the need for sneakers
While his findings may not be a revelation for the humans who have been running for millions of years, "apparently safely, in running flats, in thin sandals or moccasins, or in no shoes at all," it is news for Duane and other barefooters looking to feel and be grounded without the need for Nikes
"I come from an athletic family, and my four brothers are all runners," she said "I have loved running since I was a young girl My eldest brother Timmy, who was a marathoner and at age 61 stills runs every day for miles, told me about the book Born to Run' (a national best-seller by Christopher McDougall) Christopher had one question that no one was able to answer: Why does my foot hurt'"
According to Duane, McDougall found his answer when he visited the Tarahumara Indians in Mexico, who had been running barefoot for centuries and who had developed foot-saving techniques for running hundreds of miles barefoot
"It is an inspirational story that also explains how the modern shoe of today came out in the 70s with absolutely no science behind it In fact, the cushioned heel not only forces one heel to strike but it shortens the Achilles tendon and calf muscles So now I was excited and angry In the 70s, I was a young runner buying into the fact that I needed fat heels, and I was taught to heel strike! So my sneakers came off and I had to find some kind of footwear that I could run with and walk around in, something that would be healthy and give my foot some integrity back"
While the Vibram FiveFingers did restore some of that "integrity," Duane admitted that learning to run barefoot took a lot of practice, stretching and time
"It took me months of just walking in them before I could run in them I had to completely heal, train and stretch my hamstrings,Vibram FiveFingers kso, calves and feet before I ran barefoot I had to learn how to run completely differently When you run barefoot, you have to run correctly You would never land on your heel unless you wanted a concussion It is like the foot becomes a diving board instead of a collision to the heel Every part of your foot becomes used in running toe to heel
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